[区块链]TRONWEB查询指定账户的TRC20余额

const TronWeb = require('tronweb');
const tronWeb = new TronWeb({
    fullHost: 'https://api.trongrid.io',
    privateKey: '你的私钥 your private key'
});


//查询TRC20账户USDT
var abi = [{
    "constant": true,
    "inputs": [],
    "name": "name",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_upgradedAddress", "type": "address"}],
    "name": "deprecate",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_spender", "type": "address"}, {"name": "_value", "type": "uint256"}],
    "name": "approve",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "deprecated",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_evilUser", "type": "address"}],
    "name": "addBlackList",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "totalSupply",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_from", "type": "address"}, {"name": "_to", "type": "address"}, {
        "name": "_value",
        "type": "uint256"
    }],
    "name": "transferFrom",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "upgradedAddress",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "decimals",
    "outputs": [{"name": "", "type": "uint8"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "maximumFee",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "_totalSupply",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "unpause",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "_maker", "type": "address"}],
    "name": "getBlackListStatus",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "paused",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_spender", "type": "address"}, {"name": "_subtractedValue", "type": "uint256"}],
    "name": "decreaseApproval",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "who", "type": "address"}],
    "name": "balanceOf",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "_value", "type": "uint256"}],
    "name": "calcFee",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "pause",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "owner",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "symbol",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_to", "type": "address"}, {"name": "_value", "type": "uint256"}],
    "name": "transfer",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "who", "type": "address"}],
    "name": "oldBalanceOf",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "newBasisPoints", "type": "uint256"}, {"name": "newMaxFee", "type": "uint256"}],
    "name": "setParams",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "amount", "type": "uint256"}],
    "name": "issue",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_spender", "type": "address"}, {"name": "_addedValue", "type": "uint256"}],
    "name": "increaseApproval",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "amount", "type": "uint256"}],
    "name": "redeem",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "_owner", "type": "address"}, {"name": "_spender", "type": "address"}],
    "name": "allowance",
    "outputs": [{"name": "remaining", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "basisPointsRate",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "", "type": "address"}],
    "name": "isBlackListed",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_clearedUser", "type": "address"}],
    "name": "removeBlackList",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "MAX_UINT",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "newOwner", "type": "address"}],
    "name": "transferOwnership",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_blackListedUser", "type": "address"}],
    "name": "destroyBlackFunds",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
}, {
    "inputs": [{"name": "_initialSupply", "type": "uint256"}, {"name": "_name", "type": "string"}, {
        "name": "_symbol",
        "type": "string"
    }, {"name": "_decimals", "type": "uint8"}], "payable": false, "stateMutability": "nonpayable", "type": "constructor"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "_blackListedUser", "type": "address"}, {
        "indexed": false,
        "name": "_balance",
        "type": "uint256"
    }],
    "name": "DestroyedBlackFunds",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "amount", "type": "uint256"}],
    "name": "Issue",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "amount", "type": "uint256"}],
    "name": "Redeem",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "newAddress", "type": "address"}],
    "name": "Deprecate",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "_user", "type": "address"}],
    "name": "AddedBlackList",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "_user", "type": "address"}],
    "name": "RemovedBlackList",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "feeBasisPoints", "type": "uint256"}, {
        "indexed": false,
        "name": "maxFee",
        "type": "uint256"
    }],
    "name": "Params",
    "type": "event"
}, {"anonymous": false, "inputs": [], "name": "Pause", "type": "event"}, {
    "anonymous": false,
    "inputs": [],
    "name": "Unpause",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "previousOwner", "type": "address"}, {
        "indexed": true,
        "name": "newOwner",
        "type": "address"
    }],
    "name": "OwnershipTransferred",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "owner", "type": "address"}, {
        "indexed": true,
        "name": "spender",
        "type": "address"
    }, {"indexed": false, "name": "value", "type": "uint256"}],
    "name": "Approval",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "from", "type": "address"}, {
        "indexed": true,
        "name": "to",
        "type": "address"
    }, {"indexed": false, "name": "value", "type": "uint256"}],
    "name": "Transfer",
    "type": "event"
}]; //TRC20 USDT合约ABI
var contract = 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t'; //TRC20 USDT合约地址
var tronWebContract = tronWeb.contract(abi,contract);
<!-- 查询账户的TRC20余额start -->
var res =tronWebContract.methods.balanceOf('所要查询的账户').call(function (error,result) {
    console.log(error);
    console.log(result.toString());
});
<!-- 查询账户的TRC20余额end -->

创作打卡挑战赛

赢取流量/现金/CSDN周边激励大奖